... API 5L, ASTM A106/A53, JIS G3456/3461 , DIN1626/1629/17175 Certificate:ISO 9001, SGS, BV, etc. Steel Pipe for Boiler ... . Unfixed: 5-12mStandardASTM A53,A106,API 5L,ASME B36.10M-1996DIN1626,DIN1629,DIN17175JIS ... JIS G3457,JIS G3461MaterialA53B, A106B, API 5L B,X42,X46,X52,X60, X65 ... power, foodstuff, papermaking, chemical, medical equipment, boiler heat, exchanger, gas metallurgy, Surface Black painting ...